Exactly, it's brackish so timing is everything when chasing salmon, it's while the salmon are on route to there spawning grounds that there passing through the bottle neck area which condenses them. On a calm day with next to no swell you could go out though the gap, but if your not used to current and potentially crashing waves I would stay clear. The bottle neck part of the opening is quite shallow with really shallow spots and there's current in there as well. Watch your tides if choose to go on the outside, if it's low slack and the tides coming up it's no problem but if there's swell and the tides going out there could be some nice waves but you can usually see them before committing, look for white walls. You could even follow the moon, further way from a full moon the less intense the tide changes are. What you don't want to happen is go out when the tides coming in and thinking it's no problem then after several hours of fishing the tides changed standing up the swells. If that happens just ride the backside of the wave until it lays down and cruise right on in, happened one time stayed out to long when the weather was picking up and at that time I was in a 16 Double Eagle we rode the backside of one of the waves in and right behind us was a crasher but so long as you maintain the same speed the wave won't catch you. Not a time you want any engine issues lol!